Extended Memory module and HP-41CX

[Allen]

(12-16-2018 06:40 PM)grsbanks Wrote:  

Quote:The HP 82181A Extended Memory Module provides an additional 238 registers (1,666 bytes) for use with the HP-41C or the HP-41CV.

I have 2 versions of the XMEMORY pamphlet dated December 1981 and October 1984 and neither mentions compatibility with the 41CX. I'm guessing the image above is from the 1981 pamphlet. But, I agree with the others, the 41CX did get the Extended Functions and TIME module built in, but definitely needed the 2 XMEM modules to complete the extended memory registers.